<template>
  <div class="pagination">
    <el-pagination
        background
        :layout="layout"
        :pager-count="pagerCount"
        :page-sizes="pageSizes"
        :page-size="pageSize"
        :total="pageTotal"
        v-model:currentPage="currentPages"
        @size-change="sizeChange"
        @current-change="current"
        @prev-click="prev"
        @next-click="next"
    ></el-pagination>
  </div>
</template>

<script setup lang="ts">
import { ref, reactive, onMounted } from "vue";
const props = defineProps({
  pageTotal: {
    type: Number,
    default: 100, //总页数
  },
  pagerCount: {
    type: Number,
    default: 5, //如果页数很多大概展示的页码
  },
  layout: {
    type: String,
    default: "total,sizes, prev, pager, next, jumper, ->, slot", //分页组件会展示的功能项
  },
  pageSizes: {
    type: Array,
    default: () => {
      return [10, 20, 30, 40, 50, 100]; //指定分页展示条数
    },
  },
  currentPage: {
    type: Number,
    default: 1, //指定跳转到多少页
  },
  pageSize: {
    type: Number,
    // default: 1, //每页展示的条数，根据自己实际，且会带入请求
  },
  pageNum: {
    type: Number,
    default: 1, //第几页数据，根据自己实际，且会带入请求
  },
});

let currentPages = ref(props.currentPage);
let pageData = reactive({
  pageSize: props.pageSize,
  pageNum: props.pageNum,
});

const emit = defineEmits(["pageFunc"]);

//选择每页显示数量 Change page size
const sizeChange = (val) => {
  pageData.pageSize = val;
  emit("pageFunc", pageData);
};
//选择某一页
const current = (val) => {
  pageData.pageNum = currentPages.value;
  emit("pageFunc", pageData);
};
// //上一页
// const prev = () => {
//   pageData.pageNum = pageData.pageNum - 1;
//   emit("pageFunc", pageData);
// };
// //下一页
// const next = () => {
//   pageData.pageNum = pageData.pageNum + 1;
//   emit("pageFunc", pageData);
// };
</script>

